Condenser online leakage detection equipment based on condenser vacuum degree detection

Abstract

The invention discloses condenser on-line leakage detection equipment based on condenser vacuum degree detection, belongs to the technical field of condenser leakage detection, and aims to solve the problems that the condenser on-line leakage detection equipment is not easy to realize full-area coverage detection of a sealing surface and is not easy to carry out emergency disposal after leakage occurs. Two supporting seats are fixedly connected to the bottom of the condenser body, one side of the condenser body communicates with a first connecting pipe, one end of the first connecting pipe communicates with a second connecting pipe, the other end of the second connecting pipe communicates with the condenser body, and connecting assemblies are arranged on the outer walls of the first connecting pipe and the second connecting pipe. According to the invention, synchronous dynamic detection of looseness of a fastening structure of the connecting assembly and leakage of a joint can be realized, the limitation of fixed-point single detection is broken through, the detection comprehensiveness and precision are improved, and potential fault hidden dangers can be conveniently captured in the first time.

Description

Technical Field

[0001] This invention relates to the field of condenser leak detection technology, specifically to an online condenser leak detection device based on condenser vacuum detection. Background Technology

[0002] Condenser online leak detection equipment is a core auxiliary device used in steam power units in thermal power, nuclear power, chemical and other fields. It uses the condenser vacuum degree, a key operating parameter, as the detection benchmark to continuously and uninterruptedly monitor leaks in the condenser tube sheet, flange connection surface and gasket. It can realize real-time data acquisition, identify the location of leaks, and provide dynamic monitoring support for the stable operation of the condenser. It is an important technical means to ensure the integrity of the unit's vacuum system and avoid operational failures caused by leaks.

[0003] Current online leak detection equipment for condensers is limited to preset points during testing, making it difficult to achieve full coverage of the sealing surface. This results in blind spots at high-risk leak locations such as flange connections, affecting the test results. Furthermore, after a leak occurs, manual shutdown is required for maintenance, including replacing seals or tightening bolts, which makes emergency response difficult and disrupts production continuity.

[0004] To address the above issues, an online leak detection device for condensers based on condenser vacuum detection is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an online leak detection device for condensers based on condenser vacuum detection. By using this invention, the problems mentioned above are solved, namely, that online leak detection devices for condensers are not easy to achieve full coverage detection of the sealing surface, and that emergency response is not easy after a leak occurs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The condenser online leak detection device based on condenser vacuum detection includes a condenser body with two support seats fixedly connected to the bottom of the condenser body. A first connecting pipe is connected to one side of the condenser body, and a second connecting pipe is connected to one end of the first connecting pipe, with the other end of the second connecting pipe connected to the condenser body. A connecting assembly is provided on the outer wall of the first and second connecting pipes, and a rotating assembly is provided on the outer wall of the second connecting pipe. A detection assembly is provided inside the rotating assembly, a conversion assembly is provided inside the detection assembly, and a driving assembly is provided inside the detection assembly. A pushing and pressing assembly is provided inside the connecting assembly, and the pushing and pressing assembly is fixedly connected to the driving assembly. A spare sealing assembly is provided inside the connecting assembly.

[0007] Furthermore, the connecting assembly includes a first flange fixedly connected to one end of the first connecting pipe, a connecting plate fixedly connected to one end of the second connecting pipe, a turntable rotatably connected to the outer wall of the connecting plate, and a second flange rotatably connected to the outer wall of the turntable. A plurality of positioning grooves are provided on one side of the first flange. A plurality of screws are provided through the first flange and the second flange. One end of the screw is located in the positioning groove, and the other end of the screw is threadedly connected to a nut. An L-shaped driven rod is fixedly connected to the outer wall of the nut. The nut fits against the second flange. A first sealing ring is provided on one side of both the first flange and the connecting plate, and the two first sealing rings fit tightly together.

[0008] Furthermore, the rotating assembly includes a protective cover fixedly connected to the outer wall of the second connecting pipe. A first motor is installed on one side of the protective cover. A rotating shaft is fixedly connected to the output end of the first motor. The rotating shaft is rotatably connected to the protective cover. A gear is fixedly connected to one end of the rotating shaft. A rotating cover is rotatably connected to the outer wall of the second connecting pipe. A gear ring is fixedly connected to one side of the rotating cover. The gear meshes with the gear ring. The protective cover is rotatably connected to the rotating cover.

[0009] Furthermore, the detection assembly includes a laser sensor installed inside a rotating housing, and an ultrasonic leakage sensor is installed inside the rotating housing.

[0010] Furthermore, the conversion assembly includes a second motor installed inside the rotating cover, and an L-shaped push rod is fixedly connected to the output end of the second motor.

[0011] Furthermore, the driving assembly includes an annular electromagnet installed inside the rotating cover, a plurality of sliding rods slidably connected inside the turntable, and annular magnet blocks fixedly connected to the outer walls of the sliding rods.

[0012] Furthermore, the push-pressing assembly includes a push ring fixedly connected to one end of the slide rod, a plurality of springs fixedly connected to one side of the push ring, and the other end of the springs fixedly connected to one side of the turntable. A plurality of arc-shaped inclined blocks are fixedly connected to the inner wall of the push ring, a slot is provided on one side of the push ring, and an inclined surface is provided on one side of the push ring.

[0013] Furthermore, the spare sealing assembly includes a second sealing ring that is slidably connected to the outer wall of the connecting disc. The outer wall of the second sealing ring is evenly provided with a plurality of inclined grooves, which are matched with the shape of the arc-shaped inclined block. A through groove is provided inside the second sealing ring.

[0014] Furthermore, a snap-fit ​​groove is provided on one side of the first flange, the snap-fit ​​groove is matched with the shape of the push ring, and a snap-fit ​​ring is fixedly connected in the snap-fit ​​groove, and the snap-fit ​​groove and the snap-fit ​​ring snap together.

[0015] Furthermore, arc-shaped grooves are provided on both sides of the inner wall of the through groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By coordinating the rotating component and the detection component, the laser sensor and the ultrasonic leak sensor are driven to rotate, realizing the synchronous dynamic detection of loose fastening structure of the connection component and leakage at the connection point. This breaks through the limitations of fixed-point single detection, improves the comprehensiveness and accuracy of detection, and facilitates the immediate capture of potential fault hazards. By cooperating with the conversion component and the connection component, the L-shaped push rod drives the L-shaped driven rod to rotate the nut, and the loose fastening structure is automatically tightened online without the need for manual shutdown and disassembly, which shortens the fault handling time and facilitates the restoration of structural stability without affecting the operation of the condenser. Through the cooperation between the drive component, the push clamping component and the spare sealing component, the electromagnet drives the slide rod to push the seal into the sealing gap, and the arc-shaped inclined block fits and presses against the inclined groove, quickly blocking the leakage channel. There is no need to stop the machine to replace the seal, which can easily ensure the stability of the system vacuum and reduce energy consumption loss. By cooperating with the rotating component, the conversion component and the spare sealing component, the seal is pushed to rotate at a small angle and then pressed again, and the angle of the failed spare seal is dynamically adjusted to give full play to its maximum effect. There is no need to stop the machine immediately for replacement, which makes it convenient to buy enough time for manual maintenance. By coordinating the connection components with the leak detection equipment, the corresponding specifications of the equipment can be adaptively configured according to the differences in the diameter and length of each pipe, which not only ensures comprehensive detection coverage, but also simplifies the installation and adaptation process, making the operation flexible and convenient, and easy to adapt to the leak detection needs of different pipes in the condenser. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 This is a cross-sectional structural diagram illustrating the connection relationship between the connecting component and the driving component of the present invention; Figure 6 This is a partial side view cross-sectional structural schematic diagram of the present invention; Figure 7 for Figure 6 Enlarged view of point B; Figure 8 for Figure 7 Enlarged view of point C; Figure 9 This is a cross-sectional structural diagram showing the connection relationship between the first connecting pipe, the second connecting pipe, the connecting assembly, the rotating assembly, the detection assembly, and the conversion assembly of the present invention. Figure 10 This is a schematic diagram showing the connection relationship between the drive assembly, the push-press assembly, and the backup sealing assembly of the present invention. Figure 11 This is a cross-sectional structural diagram showing the connection relationship between the drive assembly, the push-press assembly, and the backup sealing assembly of the present invention. Figure 12 for Figure 11 Enlarged view of point D; Figure 13 This is a cross-sectional structural diagram illustrating the connection relationship between the connecting component and the pushing and pressing component of the present invention; Figure 14 for Figure 13 Enlarged view of point E.

[0018] In the diagram: 1. Condenser body; 11. Support base; 12. First connecting pipe; 13. Second connecting pipe; 2. Connecting assembly; 21. First flange; 22. Connecting plate; 23. Screw; 24. Positioning groove; 25. Nut; 26. L-shaped driven rod; 27. First sealing ring; 28. Turntable; 29. ​​Second flange; 3. Rotating assembly; 31. Protective cover; 32. First motor; 33. Rotating shaft; 34. Gear; 35. Gear ring; 36. Rotating cover; 4. Detection assembly; 1. Laser sensor; 42. Ultrasonic leakage sensor; 5. Conversion assembly; 51. Second motor; 52. L-shaped push rod; 6. Drive assembly; 61. Ring electromagnet; 62. Slide rod; 63. Ring magnet block; 7. Push and clamping assembly; 71. Push ring; 72. Spring; 73. Arc-shaped inclined block; 74. Slot; 75. Inclined surface; 8. Spare sealing assembly; 81. Second sealing ring; 82. Inclined groove; 83. Through groove; 9. Snap-fit ​​ring; 91. Snap-fit ​​groove; 10. Arc-shaped groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To address the technical challenge of achieving full-area coverage detection of the sealing surface in online condenser leak detection equipment, such as... Figures 1-9 and Figures 13-14 As shown, the following preferred technical solutions are provided: like Figure 1As shown, the condenser online leak detection device based on condenser vacuum detection includes a condenser body 1. The condenser body 1 can condense the exhaust steam discharged from the steam power unit, maintain a stable vacuum in the system, provide core condensation support for the unit's thermal cycle, and ensure efficient operation of the power system. Several pipes are connected to the condenser body 1. Leak detection devices of corresponding specifications can be adaptively configured according to the diameter and length characteristics of each pipe to achieve leak detection of pipes under different operating conditions, ensuring comprehensive detection coverage, simplifying installation and adaptation processes, and providing flexible and convenient operation. Simultaneously, the leak detection device is electrically connected to an external controller, enabling convenient real-time detection and facilitating subsequent emergency response operations. Two support seats 11 are fixedly connected to the bottom of the condenser body 1, providing support for the condenser body 1. A first connecting pipe 12 is connected to one side of the condenser body 1, and a second connecting pipe 13 is connected to one end of the first connecting pipe 12, with the other end of the second connecting pipe 13 connected to the condenser body 1. Figure 3 As shown, the outer walls of the first connecting pipe 12 and the second connecting pipe 13 are provided with connecting components 2, which facilitate the connection between the first connecting pipe 12 and the second connecting pipe 13. The outer wall of the second connecting pipe 13 is provided with a rotating component 3, such as... Figure 3 As shown, a detection component 4 is installed inside the rotating assembly 3. The rotating assembly 3 drives the detection component 4 to rotate, facilitating dynamic leak detection at the connection points of the connecting assembly 2. Simultaneously, it can detect the fastening structure of the connecting assembly 2 to determine if any loosening has occurred. Figure 3 As shown, the detection component 4 is equipped with a conversion component 5, which can switch the drive position for subsequent tightening of the fastening structure or sealing operation.

[0021] During installation, the first connecting pipe 12 and the second connecting pipe 13 are connected by the connecting component 2. When the condenser body 1 is in normal use, the rotating component 3 drives the detection component 4 to rotate through the external controller to detect the fastening structure of the connecting component 2 and determine whether it is loose. At the same time, it can also check for leaks at the connection of the connecting component 2. It can realize the synchronous dynamic detection of the loosening state of the fastening structure of the connecting component 2 and the leakage state at the connection. Compared with the fixed-point single detection mode of the existing technology, it improves the comprehensiveness and accuracy of detection, facilitates the first-time detection of potential fault hazards, and avoids the operational risks caused by the expansion of leakage or fastening failure.

[0022] When the data from the detection component 4 is abnormal, indicating that the fastening structure of the connecting component 2 is loose, the external controller causes the rotating component 3 to drive the conversion component 5 to rotate to the position directly in front of the loose fastening structure. Then, the external controller causes the conversion component 5 to rotate, causing its internal pushing structure to rotate to the path corresponding to the driven structure inside the connecting component 2. Subsequently, the external controller controls the rotating component 3 to rotate again, causing the conversion component 5 to push the connecting component 2 to rotate, thereby causing the fastening structure of the connecting component 2 to rotate and return it to a tightened state. This can automatically tighten the loose fastening structure online without manual shutdown and disassembly. Compared with the existing technology that relies on manual inspection and shutdown for maintenance, this shortens the fault handling time, reduces unplanned downtime losses, and facilitates the rapid restoration of connection sealing and structural stability without affecting the normal operation of the condenser. Afterwards, the external controller resets the conversion component 5 to avoid motion interference.

[0023] Meanwhile, if the data of the detection component 4 is abnormal and exceeds the normal tightening range, it is determined that the fastening structure of the connecting component 2 is seriously loose and cannot be tightened. At this time, an external alarm will be triggered to remind the user to perform maintenance. The alarm is existing technology and is not shown in the figure.

[0024] like Figure 3 As shown, the detection component 4 contains a driver component 6, such as... Figure 7 As shown, the connecting component 2 is equipped with a pushing and pressing component 7, which is fixedly connected to the driving component 6, as shown. Figure 7 As shown, a spare sealing component 8 is provided in the connecting component 2. When leakage occurs at the connection of the connecting component 2, the drive component 6 can push and press the clamping component 7 to push and press the spare sealing component 8 into the connection of the connecting component 2, so as to facilitate the spare sealing.

[0025] During the dynamic detection process of detection component 4, if the data of detection component 4 is abnormal and a leak is detected at the connection of connection component 2, the external controller will cause drive component 6 to move push clamping component 7 to push out the backup sealing component 8. Subsequently, as push clamping component 7 continues to move, it will gradually press the backup sealing component 8, making the backup sealing component 8 fit tightly with connection component 2, until push clamping component 7 is locked in place with the snap-fit ​​structure inside connection component 2, thus realizing the backup sealing operation. This facilitates rapid automatic sealing after leakage without manual disassembly or shutdown. Compared with the existing technology that requires shutdown to replace seals after leakage, this method can quickly block the leakage path through backup sealing component 8 without interrupting condenser operation, ensuring stable system vacuum, and significantly reducing energy loss and failure risk caused by leakage. Subsequently, the external controller will reset conversion component 5 to avoid motion interference. If the data of detection component 4 is still abnormal, an external alarm will be triggered to remind the user to perform maintenance.

[0026] After the backup seal operation is started and used for a period of time, and during the dynamic detection process by the detection component 4, if leakage occurs again at the connection of the connecting component 2, the external controller will stop the rotating component 3 and cause the driving component 6 to drive the pressing component 7 to move, so that it is not locked with the snap-fit ​​structure inside the connecting component 2, and the backup seal component 8 is no longer tightly fitted with the connecting component 2. Then, the external controller will cause the conversion component 5 to rotate, so that its internal pushing structure rotates to the path corresponding to the driven structure inside the driving component 6. Subsequently, the external controller will control the rotating component 3 to restart, so that the conversion component 5 pushes the driving component 6 to rotate a small angle, thereby causing the backup seal component 8 to rotate a small angle.

[0027] At this time, through the external controller, the drive component 6 drives the pressing component 7 to move, re-pressing the spare sealing component 8 and fixing it with the snap-fit ​​structure in the connecting component 2. The above operation is repeated multiple times until the detection component 4 detects that there is no longer any leakage at the connection of the connecting component 2. If the connection of the connecting component 2 is still detected by the detection component 4 after repeated rotation of a small angle, an alarm will be triggered by the external alarm to remind the user to perform maintenance. It can dynamically adjust the angle and re-press the failed spare sealing component 8, giving full play to the maximum effectiveness of the spare seal. Compared with the limitation of the existing technology that requires shutdown for maintenance after the spare seal fails once, it is convenient to replace the component without immediate shutdown when there are multiple leaks, which can buy enough time for manual maintenance and further improve the continuity of equipment operation and emergency support capabilities.

[0028] When the data from the detection component 4 is abnormal, and it is determined that the fastening structure of the connecting component 2 is loose and there is a leak at the connection of the connecting component 2, the loosening of the fastening structure of the connecting component 2 should be dealt with first.

[0029] like Figures 3-9 and Figures 13-14 As shown, the connecting assembly 2 includes a first flange 21 fixedly connected to one end of the first connecting pipe 12, a connecting plate 22 fixedly connected to one end of the second connecting pipe 13, a turntable 28 rotatably connected to the outer wall of the connecting plate 22, and a second flange 29 rotatably connected to the outer wall of the turntable 28. Several positioning grooves 24 are provided on one side of the first flange 21. Several screws 23 are threaded through both the first flange 21 and the second flange 29. One end of each screw 23 is located within a positioning groove 24, and the other end of each screw 23 is threadedly connected to a nut 25. The positioning grooves 24 facilitate the positioning of the screws 23, preventing them from becoming loose and facilitating the subsequent tightening of the nuts 25. An L-shaped driven rod 26 is fixedly connected to the outer wall of the nut 25, and the nut 25 fits snugly against the second flange 29. A first sealing ring 27 is provided on one side of both the first flange 21 and the connecting plate 22, and the two first sealing rings 27 fit tightly together.

[0030] like Figures 2-4 , Figures 6-7 and Figure 9 As shown, the rotating assembly 3 includes a protective cover 31 fixedly connected to the outer wall of the second connecting pipe 13. A first motor 32 is installed on one side of the protective cover 31. A rotating shaft 33 is fixedly connected to the output end of the first motor 32. The rotating shaft 33 is rotatably connected to the protective cover 31. A gear 34 is fixedly connected to one end of the rotating shaft 33. A rotating cover 36 is rotatably connected to the outer wall of the second connecting pipe 13. A detachable high-temperature resistant power supply is provided on one side of the rotating cover 36, which can conveniently supply power to the various components on the rotating cover 36 that rotate with it. The power supply is existing technology and is not shown in the figure. During regular maintenance or when the power supply is low, the user can maintain and replace the high-temperature resistant battery. A gear ring 35 is fixedly connected to one side of the rotating cover 36. The gear 34 meshes with the gear ring 35. The protective cover 31 is rotatably connected to the rotating cover 36.

[0031] like Figure 4 , Figure 6 and Figure 9As shown, the detection component 4 includes a laser sensor 41 installed inside the rotating cover 36. The laser sensor 41 can monitor the position and displacement changes of the L-shaped driven rod 26 in real time, determine whether the nut 25 connected to it is loose, and thus grasp the state of the fastening structure of the connecting component 2. Its detection position corresponds to the L-shaped driven rod 26, which facilitates the direct capture of abnormal signals of the fastening components and improves the targeting of the detection. During the initial calibration, in conjunction with an external controller, the standard position data of the L-shaped driven rod 26 in the state of the nut 25 being tightened is recorded to establish a benchmark reference to ensure the accuracy of subsequent detection. An ultrasonic leakage sensor 42 is installed inside the rotating cover 36. The 42 sensor can detect the presence of a leak by capturing changes in the ultrasonic signal at the point where the two first sealing rings 27 are joined. Its detection position corresponds to the joint of the two first sealing rings 27, which facilitates focusing on the key sealing area and achieving precise location of the leak point. During initial calibration, in conjunction with an external controller, ultrasonic signals are collected when the two first sealing rings 27 are in good condition to determine the normal signal threshold and distinguish between leaks and abnormalities. At the same time, both the laser sensor 41 and the ultrasonic leak sensor 42 are made of high-temperature resistant materials, which can withstand the high-temperature operating conditions around the condenser and avoid the impact of high temperature on the sensor's detection accuracy and service life, ensuring long-term stable performance of the leak detection function.

[0032] like Figure 4 , Figures 6-7 and Figure 9 As shown, the conversion component 5 includes a second motor 51 installed inside the rotating cover 36. The output end of the second motor 51 is fixedly connected to an L-shaped push rod 52. When there is no leakage at the connection of the connecting component 2 or loosening of the fastening structure of the connecting component 2, the L-shaped push rod 52 is located between the connecting component 2 and the drive component 6. This can prevent the L-shaped push rod 52 from interfering with the movement of the connecting component 2 and the drive component 6, ensuring that the rotating component 3 drives the detection component 4 to rotate and detect normally. At the same time, it keeps the L-shaped push rod 52 in a ready-to-respond state, which is convenient for quickly switching to the corresponding drive path in case of subsequent failure, ensuring efficient start-up of tightening or backup sealing operations.

[0033] During installation, the first connecting pipe 12 and the second connecting pipe 13 are easily connected through the cooperation of the first flange 21, connecting plate 22, second flange 29 and screw 23. When the condenser body 1 is in normal use, the first motor 32 drives the rotating shaft 33 and gear 34 to rotate through the external controller. Through the meshing of gear 34 and gear ring 35, the gear ring 35 and rotating cover 36 rotate synchronously. At this time, the rotating cover 36 rotates on the outer wall of the second connecting pipe 13, causing the laser sensor 41 and ultrasonic leak sensor 42 inside the rotating cover 36 to rotate and detect the position of nut 25 and L-shaped driven rod 26 to determine whether they are loose. At the same time, it can also detect leaks at the connection of the two first sealing rings 27. It can realize synchronous dynamic detection of the loose state of nut 25 and the leakage state at the connection of the two first sealing rings 27. Compared with the fixed-point single detection mode of the existing technology, it improves the comprehensiveness and accuracy of detection, facilitates the first detection of potential fault hazards, and avoids the operational risks caused by leakage expansion or fastening failure.

[0034] When the data from the laser sensor 41 is abnormal, indicating that the nut 25 is loose, and the L-shaped driven rod 26 is offset, the external controller causes the rotating component 3 to drive the conversion component 5 to rotate to the position directly in front of the loose nut 25. Then, the external controller causes the second motor 51 to drive the L-shaped push rod 52 to rotate, so that the L-shaped push rod 52 rotates to the path corresponding to the L-shaped driven rod 26. After that, the external controller controls the rotating component 3 to rotate again, so that when the L-shaped push rod 52 pushes, the L-shaped driven rod 26 rotates, thereby driving the nut 25 to rotate and return it to the tightened state. This can automatically tighten the loose nut 25 online without manual shutdown and disassembly. Compared with the existing technology that relies on manual inspection and shutdown for maintenance, it shortens the fault handling time, reduces unplanned downtime losses, and facilitates the rapid restoration of connection sealing and structural stability without affecting the normal operation of the condenser. Afterwards, the external controller causes the second motor 51 to drive the L-shaped push rod 52 to reset, avoiding motion interference.

[0035] Meanwhile, if the data from the laser sensor 41 is abnormal and exceeds the normal tightening range, it is determined that the nut 25 is seriously loose and cannot be tightened. In this case, an external alarm will be triggered to remind the user to perform maintenance.

[0036] To address the technical challenges of emergency response after a leak occurs, such as... Figures 3-8 and Figures 10-14 As shown, the following preferred technical solutions are provided: like Figures 4-8 , Figures 10-12 and Figure 14As shown, the drive assembly 6 includes an annular electromagnet 61 installed inside the rotating cover 36, and several slide rods 62 slidably connected inside the turntable 28. Annular magnet blocks 63 are fixedly connected to the outer wall of the slide rods 62. The positions of the annular magnet blocks 63 and the annular electromagnet 61 correspond to each other, which facilitates subsequent discharge and attraction operations.

[0037] like Figures 10-14 As shown, the push-pressing assembly 7 includes a push ring 71 fixedly connected to one end of the slide rod 62. Several springs 72 are fixedly connected to one side of the push ring 71, and the other end of the springs 72 is fixedly connected to one side of the turntable 28. Several arc-shaped inclined blocks 73 are fixedly connected to the inner wall of the push ring 71. A slot 74 is opened on one side of the push ring 71, and an inclined surface 75 is provided on one side of the push ring 71.

[0038] like Figure 8 and Figures 10-12 As shown, the spare sealing assembly 8 includes a second sealing ring 81 slidably connected to the outer wall of the connecting plate 22. Both the first sealing ring 27 and the second sealing ring 81 are made of high-temperature resistant material. When the spare sealing operation is not performed, the second sealing ring 81 is in an elastic contraction state, tightly fitting the outer wall of the connecting plate 22. This facilitates the stable fit of the second sealing ring 81 against the outer wall of the connecting plate 22, ensuring reliable storage without shaking. It also ensures that the subsequent drive assembly 6 can quickly disengage from its initial position and smoothly enter the sealing working state. During long-term use, the user will maintain and replace it, making it easy to quickly remove the aged or failed second sealing ring 81 and install a new one, simplifying the maintenance process, reducing operational difficulty, and minimizing equipment downtime due to maintenance. The outer wall of the second sealing ring 81 is evenly provided with several inclined grooves 82, which match the shape of the arc-shaped inclined block 73. The second sealing ring 81 is provided with a through groove 83, which facilitates the deformation of the second sealing ring 81, allowing it to expand into the sealing gap and tightly fill the sealing area of ​​the flange connection, ensuring the fit and reliability of the spare seal.

[0039] like Figures 7-8 As shown, a snap-fit ​​groove 91 is provided on one side of the first flange 21. The snap-fit ​​groove 91 matches the shape of the push ring 71. A snap-fit ​​ring 9 is fixedly connected inside the snap-fit ​​groove 91. The snap-fit ​​groove 74 engages with the snap-fit ​​ring 9. The push ring 71 has a moderate elastic deformation capability, which allows the push ring 71 to allow the snap-fit ​​groove 74 to accurately embed into the snap-fit ​​ring 9 through slight elastic deformation during snap-fit, achieving fast and stable snap-fit. At the same time, the elastic recovery force can enhance the tightness of the fit between the snap-fit ​​groove 74 and the snap-fit ​​ring 9, preventing loosening and maintaining the continuous pressure on the second sealing ring 81. When the snap-fit ​​needs to be canceled later, it can also be easily disengaged through elastic deformation, ensuring the reliability of the sealing fixation and subsequent operations.

[0040] like Figure 12As shown, arc-shaped grooves 10 are provided on both sides of the inner wall of the through groove 83. The arc-shaped grooves 10 can guide the second sealing ring 81 to expand evenly to both sides along the arc trajectory, avoiding damage to the edge of the through groove 83 due to stress concentration. At the same time, it can make the second sealing ring 81 fit the flange connection gap more smoothly, improving deformation adaptability and sealing reliability.

[0041] During the dynamic detection process of the ultrasonic leak sensor 42, when the data of the ultrasonic leak sensor 42 is abnormal and it is determined that there is a leak at the connection between the two first sealing rings 27, the external controller causes the annular electromagnet 61 to repel the annular magnet block 63, causing the annular magnet block 63 to drive the slide rod 62 to slide under the limit of the turntable 28. At the same time, during the movement of the slide rod 62, it will drive the push ring 71 to move, and through the movement of the push ring 71, the second sealing ring 81 will be quickly pushed between the first flange 21 and the connecting plate 22. At the same time, the spring 72 is stretched, and the second sealing ring 81 will quickly contract to fit against the outer wall of the two first sealing rings 27. During the continuous movement of the push ring 71, several arc-shaped inclined blocks 73 at the bottom of the push ring 71 will slide into the inclined grooves 82 at the corresponding positions. At the same time, one side of the push ring 71 The bottom slope 75 gradually presses the second sealing ring 81, making the second sealing ring 81 fit tightly against the first flange 21 and the connecting plate 22 until the slot 74 and the snap ring 9 are snapped and fixed, thus realizing the backup sealing operation. This facilitates rapid automatic sealing after leakage without manual disassembly or shutdown. Compared with the existing technology that requires shutdown to replace the seal after leakage, this method can quickly block the leakage channel through the second sealing ring 81 without interrupting the operation of the condenser, ensuring the stability of the system vacuum and significantly reducing energy loss and failure risk caused by leakage. Subsequently, through the external controller, the second motor 51 drives the L-shaped push rod 52 to reset, avoiding motion interference. If the data of the ultrasonic leakage sensor 42 is still abnormal at this time, an alarm will be triggered by the external alarm to remind the user to perform maintenance.

[0042] After the backup sealing operation is initiated and used for a period of time, and during the dynamic detection process by the ultrasonic leak sensor 42, if the ultrasonic leak sensor 42 determines that a leak has occurred again at the connection between the two first sealing rings 27, the external controller stops the rotating component 3 and causes the annular electromagnet 61 to attract the annular magnet block 63, driving the push ring 71 to move. This causes the slot 74 to disengage from the locking ring 9. At this time, the elastic force of the spring 72 causes the vertical surface of the arc-shaped inclined block 73 to fit against the vertical surface of the inclined groove 82, thereby causing the push ring 71 to move. The rotating ring 71 releases its pressure on the second sealing ring 81, thus releasing the tight fit between the second sealing ring 81 and the two first sealing rings 27. Then, through an external controller, the second motor 51 drives the L-shaped push rod 52 to rotate, causing the L-shaped push rod 52 to rotate to the path corresponding to the slide rod 62. Subsequently, through an external controller, the rotating assembly 3 is restarted, causing the L-shaped push rod 52 to push the slide rod 62 to rotate a small angle. At this time, the turntable 28 rotates within the connecting plate 22 and the second flange 29, thereby causing the second sealing ring 81 to rotate a small angle.

[0043] At this time, through the external controller, the drive component 6 drives the push ring 71 to move, so that it re-tightens the second sealing ring 81 and makes the slot 74 and the locking ring 9 re-lock and fix it. Repeat the above operation multiple times until the ultrasonic leakage sensor 42 detects that there is no longer any leakage at the connection between the two first sealing rings 27. If the ultrasonic leakage sensor 42 detects that there is still leakage at the connection between the two first sealing rings 27 after repeatedly rotating a small angle, an alarm will be triggered by the external alarm to remind the user to perform maintenance. It can dynamically adjust the angle and re-tighten the failed second sealing ring 81, giving full play to the maximum effectiveness of the backup seal. Compared with the limitation of the existing technology that requires shutdown for maintenance after the backup seal fails once, it is convenient to replace components without immediate shutdown when there are multiple leaks, which can buy enough time for manual maintenance and further improve the continuity of equipment operation and emergency support capabilities.

[0044] When the data from both the laser sensor 41 and the ultrasonic leakage sensor 42 are abnormal, indicating that the nut 25 is loose and there is a leak at the connection between the two first sealing rings 27, the loosening of the nut 25 will be dealt with first.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A condenser online leak detection device based on condenser vacuum detection, comprising a condenser body (1), wherein two support seats (11) are fixedly connected to the bottom of the condenser body (1), characterized in that: The condenser body (1) is connected to a first connecting pipe (12) on one side, and a second connecting pipe (13) is connected to one end of the first connecting pipe (12), and the other end of the second connecting pipe (13) is connected to the condenser body (1). A connecting component (2) is provided on the outer wall of the first connecting pipe (12) and the second connecting pipe (13). A rotating component (3) is provided on the outer wall of the second connecting pipe (13). A detection component (4) is provided inside the rotating component (3). A conversion component (5) is provided inside the detection component (4). A driving component (6) is provided inside the detection component (4). A pushing and pressing component (7) is provided inside the connecting component (2). The pushing and pressing component (7) is fixedly connected to the driving component (6). A spare sealing component (8) is provided inside the connecting component (2).

2. The condenser online leak detection device based on condenser vacuum detection according to claim 1, characterized in that: The connecting assembly (2) includes a first flange (21) fixedly connected to one end of the first connecting pipe (12), a connecting plate (22) fixedly connected to one end of the second connecting pipe (13), a turntable (28) rotatably connected to the outer wall of the connecting plate (22), a second flange (29) rotatably connected to the outer wall of the turntable (28), a plurality of positioning grooves (24) are provided on one side of the first flange (21), a plurality of screws (23) are provided through the first flange (21) and the second flange (29), one end of the screw (23) is provided in the positioning groove (24), and the other end of the screw (23) is threadedly connected to a nut (25), an L-shaped driven rod (26) is fixedly connected to the outer wall of the nut (25), the nut (25) is in contact with the second flange (29), and a first sealing ring (27) is provided on one side of the first flange (21) and the connecting plate (22), and the two first sealing rings (27) are tightly in contact.

3. The condenser online leak detection device based on condenser vacuum detection according to claim 2, characterized in that: The rotating assembly (3) includes a protective cover (31) fixedly connected to the outer wall of the second connecting pipe (13). A first motor (32) is installed on one side of the protective cover (31). A rotating shaft (33) is fixedly connected to the output end of the first motor (32). The rotating shaft (33) is rotatably connected to the protective cover (31). A gear (34) is fixedly connected to one end of the rotating shaft (33). A rotating cover (36) is rotatably connected to the outer wall of the second connecting pipe (13). A gear ring (35) is fixedly connected to one side of the rotating cover (36). The gear (34) meshes with the gear ring (35). The protective cover (31) is rotatably connected to the rotating cover (36).

4. The condenser online leak detection device based on condenser vacuum detection according to claim 3, characterized in that: The detection component (4) includes a laser sensor (41) installed inside the rotating cover (36), and an ultrasonic leakage sensor (42) installed inside the rotating cover (36).

5. The condenser online leak detection device based on condenser vacuum detection according to claim 3, characterized in that: The conversion assembly (5) includes a second motor (51) installed inside the rotating cover (36), and an L-shaped push rod (52) is fixedly connected to the output end of the second motor (51).

6. The condenser online leak detection device based on condenser vacuum detection according to claim 3, characterized in that: The drive assembly (6) includes an annular electromagnet (61) installed inside the rotating cover (36), and several slide rods (62) slidably connected inside the turntable (28). An annular magnet block (63) is fixedly connected to the outer wall of the slide rod (62).

7. The condenser online leak detection device based on condenser vacuum detection according to claim 6, characterized in that: The push-pressing assembly (7) includes a push ring (71) fixedly connected to one end of the slide rod (62). Several springs (72) are fixedly connected to one side of the push ring (71), and the other end of the springs (72) is fixedly connected to one side of the turntable (28). Several arc-shaped inclined blocks (73) are fixedly connected to the inner wall of the push ring (71). A slot (74) is opened on one side of the push ring (71), and an inclined surface (75) is provided on one side of the push ring (71).

8. The condenser online leak detection device based on condenser vacuum detection according to claim 7, characterized in that: The spare sealing assembly (8) includes a second sealing ring (81) that is slidably connected to the outer wall of the connecting plate (22). The outer wall of the second sealing ring (81) is evenly provided with a plurality of inclined grooves (82). The inclined grooves (82) are matched with the shape of the arc-shaped inclined block (73). A through groove (83) is provided inside the second sealing ring (81).

9. The condenser online leak detection device based on condenser vacuum detection according to claim 7, characterized in that: The first flange (21) has a snap-fit ​​groove (91) on one side. The snap-fit ​​groove (91) matches the shape of the push ring (71). A snap-fit ​​ring (9) is fixedly connected inside the snap-fit ​​groove (91). The snap-fit ​​groove (74) snaps into the snap-fit ​​ring (9).

10. The condenser online leak detection device based on condenser vacuum detection according to claim 8, characterized in that: The inner wall of the through groove (83) is provided with arc-shaped grooves (10) on both sides.

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